datasheet search site | l78m00 series 5/21 electrical characteristics of l78m05c(refer to the test...

1/21January 2004

■ OUTPUT CURRENT TO 0.5A

■ OUTPUT VOLTAGES OF 5; 6; 8; 9; 12; 15;18; 20; 24V

■ THERMAL OVERLOAD PROTECTION

■ SHORT CIRCUIT PROTECTION

■ OUTPUT TRANSITION SOA PROTECTION

DESCRIPTION

The L78M00 series of three-terminal positiveregulators is available in TO-220, TO-220FP,DPAK and IPAK packages and with several fixedoutput voltages, making it useful in a wide range ofapplications. These regulators can provide localon-card regulation, eliminating the distributionproblems associated with single point regulation.Each type employs internal current limiting,thermal shut-down and safe area protection,making it essentially indestructible. If adequateheat sinking is provided, they can deliver over0.5A output current. Although designed primarilyas fixed voltage regulators, these devices can be

used with external components to obtainadjustable voltage and currents.

L78M00SERIES

POSITIVE VOLTAGE REGULATORS

SCHEMATIC DIAGRAM

TO-220

DPAK

TO-220FP

IPAK

L78M00 SERIES

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ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnot implied.

THERMAL DATA

SHEMATIC DIAGRAM

Symbol Parameter Value Unit

VIDC Input Voltage (for VO= 5 to 18V)

(for VO= 20, 24V)3540

VV

IO Output Current Internally Limited mA

PD Power Dissipation Internally Limited mW

Tstg Storage Temperature Range -65 to +150 °C

Top Operating Junction Temperature Range 0 to +150 °C

Symbol Parameter TO-220 TO-220FP DPAK IPAK Unit

Rthj-case Thermal Resistance Junction-case 3 5 8 °C/W

Rthj-amb Thermal Resistance Junction-ambient 50 60 100 °C/W

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CONNECTION DIAGRAM (top view)

ORDERING CODES

(*) Available in Tape & Reel with the suffix "-TR".

APPLICATION CIRCUITS

TYPE TO-220 TO-220FP DPAK (*) IPAK OUTPUTVOLTAGE

L78M05 L78M05CV L78M05CP L78M05CDT L78M05CDT-1 5 VL78M06 L78M06CV L78M06CP L78M06CDT L78M06CDT-1 6 VL78M08 L78M08CV L78M08CP L78M08CDT L78M08CDT-1 8 V

L78M09 L78M09CV L78M09CP L78M09CDT L78M09CDT-1 9 VL78M10 L78M10CV L78M10CP L78M10CDT L78M10CDT-1 10 VL78M12 L78M12CV L78M12CP L78M12CDT L78M12CDT-1 12 VL78M15 L78M15CV L78M15CP L78M15CDT L78M15CDT-1 15 VL78M18 L78M18CV L78M18CP L78M18CDT L78M18CDT-1 18 VL78M20 L78M20CV L78M20CP L78M20CDT L78M20CDT-1 20 VL78M24 L78M24CV L78M24CP L78M24CDT L78M24CDT-1 24 V

TO-220 TO-220FP

IPAKDPAK

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TEST CIRCUITS

Figure 1 : DC Parameter

Figure 2 : Load Regulation

Figure 3 : Ripple Rejection

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ELECTRICAL CHARACTERISTICS OF L78M05C (refer to the test circuits, TJ = 25°C, VI = 10V,IO = 350 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).


Symbol Parameter Test Conditions Min. Typ. Max. Unit

VO Output Voltage 4.8 5 5.2 V

VO Output Voltage IO = 5 to 350 mA VI = 7 to 20 V 4.75 5 5.25 V

∆VO Line Regulation VI = 7 to 25 V IO = 200 mA 100 mV

VI = 8 to 25 V IO = 200 mA 50

∆VO Load Regulation IO = 5 to 500 mA TJ = 25°C 100 mV

IO = 5 to 200 mA TJ = 25°C 50

Id Quiescent Current 6 mA

∆Id Quiescent Current Change IO = 5 to 350 mA 0.5 mA

IO = 200 mA VI = 8 to 25 V 0.8

∆VO/∆T Output Voltage Drift IO = 5 mA TJ = 0 to 125°C -0.5 mV/°C

SVR Supply Voltage Rejection VI = 8 to 18 V f = 120HzIO = 300mA

62 dB

eN Output Noise Voltage B =10Hz to 100KHz 40 µV

Vd Dropout Voltage 2 V

Isc Short Circuit Current VI = 35 V 300 mA





VI = 9 to 25 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 60



IO = 200 mA VI = 9 to 25 V 0.8



59 dB

eN Output Noise Voltage B =10Hz to 100KHz 45 µVVd Dropout Voltage 2 V


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VO Output Voltage IO = 5 to 350 mA VI = 10.5 to 23 V 7.6 8 8.4 V

∆VO Line Regulation VI = 10.5 to 25 V IO = 200 mA 100 mV

VI = 11 to 25 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 80



IO = 200 mA VI = 10.5 to 25 V 0.8


SVR Supply Voltage Rejection VI = 11.5 to 21.5 V f = 120HzIO = 300mA

56 dB







VI = 12 to 25 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 90



IO = 200 mA VI = 11.5 to 25 V 0.8


SVR Supply Voltage Rejection VI = 12.5 to 23 V f = 120HzIO = 300mA

56 dB



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VI = 13 to 30 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 100



IO = 200 mA VI = 12.5 to 30 V 0.8


SVR Supply Voltage Rejection VI = 13.5 to 24 V f = 120HzIO = 300mA

56 dB








VI = 16 to 30 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 120



IO = 200 mA VI = 14.5 to 30 V 0.8

∆VO/∆T Output Voltage Drift IO = 5 mA TJ = 0 to 125°C -1 mV/°C


55 dB



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VI = 20 to 30 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 150



IO = 200 mA VI = 17.5 to 30 V 0.8

∆VO/∆T Output Voltage Drift IO = 5 mA TJ = 0 to 125°C -1 mV/°C

SVR Supply Voltage Rejection VI = 18.5 to 28.5 V f = 120HzIO = 300mA

54 dB








VI = 24 to 33 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 180



IO = 200 mA VI = 21 to 33 V 0.8



53 dB



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ELECTRICAL CHARACTERISTICS OF L78M24C (refer to the test circuits, TJ = 25°C, VI = 33V,IO = 350 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified),



VO Output Voltage IO = 5 to 350 mA VI = 23 to 35 V 19 20 21 V


VI = 24 to 35 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 200



IO = 200 mA VI = 23 to 35 V 0.8



53 dB





VO Output Voltage 23 24 25 V



VI = 28 to 38 V IO = 200 mA 50


IO = 5 to 200 mA TJ = 25°C 240



IO = 200 mA VI = 27 to 38 V 0.8



50 dB




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Figure 4 : Dropout Voltage vs JunctionTemperature

Figure 5 : Dropout Characteristics

Figure 6 : Peak Output Current vs Input-OutputDifferential Voltage

Figure 7 : Output Voltage vs JunctionTemperature

Figure 8 : Supply Voltage Rejection vsFrequency

Figure 9 : Quiescent Current vs JunctionTemperature

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Figure 10 : Load Transient Response

Figure 11 : Line Transient Response

Figure 12 : Quiescent Current vs Input Voltage

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Figure 13 : Fixed Output Regulator

NOTE:1. To specify an output voltage, substitute voltage value for "XX".2. Although no output capacitor is need for stability, it does improve transient response.3. Required if regulator is locate an appreciable distance from power supply filter.

Figure 14 :

Figure 15 :

VxxIO = + IdR1

IR1 ≥ 5 Id

R2VO = VXX (1+ ) + Id R2R1

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Figure 16 : Adjustable Output Regulator (7 to 30V)

Figure 17 : 0.5 to 10V Regulator

Figure 18 : High Current Voltage Regulator

Figure 19 : High Output Current with Short Circuit

R4VO = Vxx R1

VBEQ1R1 = IQ1IREQ - βQ1

VBEQ1IO = IREG + Q1 (IREG )R1

VBEQ2VO = ISC

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Figure 20 : Tracking Voltage Regulator

Figure 21 : High Input Voltage Circuit

Figure 22 : Reducing Power Dissipation with Dropping Resistor

VIN = VI - (VZ + VBE)

VI(min) - VXX - VDROP(max)R = IO(max) + Id(max)

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Figure 23 : Power AM Modulator (unity voltage gain, IO ≤ 0.5)

NOTE: The circuit performs well up to 100 KHz.

Figure 24 : Adjustable Output Voltage with Temperature Compensation

NOTE: Q2 is connected as a diode in order to compensate the variation of the Q1 VBE with the temperature. C allows a slow risetime of the VO.

R2VO = VXX (1+ ) + VBER1

L78M00 SERIES

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DIM.mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 4.40 4.60 0.173 0.181

C 1.23 1.32 0.048 0.051

D 2.40 2.72 0.094 0.107

D1 1.27 0.050

E 0.49 0.70 0.019 0.027

F 0.61 0.88 0.024 0.034

F1 1.14 1.70 0.044 0.067

F2 1.14 1.70 0.044 0.067

G 4.95 5.15 0.194 0.203

G1 2.4 2.7 0.094 0.106

H2 10.0 10.40 0.393 0.409

L2 16.4 0.645

L4 13.0 14.0 0.511 0.551

L5 2.65 2.95 0.104 0.116

L6 15.25 15.75 0.600 0.620

L7 6.2 6.6 0.244 0.260

L9 3.5 3.93 0.137 0.154

DIA. 3.75 3.85 0.147 0.151

TO-220 MECHANICAL DATA

P011C

L78M00 SERIES

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DIM.mm. inch


A 4.40 4.60 0.173 0.181

B 2.5 2.7 0.098 0.106

D 2.5 2.75 0.098 0.108

E 0.45 0.70 0.017 0.027

F 0.75 1 0.030 0.039

F1 1.15 1.50 0.045 0.059

F2 1.15 1.50 0.045 0.059

G 4.95 5.2 0.194 0.204

G1 2.4 2.7 0.094 0.106

H 10.0 10.40 0.393 0.409

L2 16 0.630

L3 28.6 30.6 1.126 1.204

L4 9.8 10.6 0.385 0.417

L6 15.9 16.4 0.626 0.645

L7 9 9.3 0.354 0.366

DIA. 3 3.2 0.118 0.126

TO-220FP MECHANICAL DATA

L2

AB

D

E

H G

L6

¯ F

L3

G1

1 2 3

F2

F1

L7

L4

7012510/G

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DIM.mm. inch


A 2.2 2.4 0.086 0.094

A1 0.9 1.1 0.035 0.043

A2 0.03 0.23 0.001 0.009

B 0.64 0.9 0.025 0.035

B2 5.2 5.4 0.204 0.212

C 0.45 0.6 0.017 0.023

C2 0.48 0.6 0.019 0.023

D 6 6.2 0.236 0.244

D1 5.1 0.200

E 6.4 6.6 0.252 0.260

E1 4.7 0.185

e 2.28 0.090

e1 4.4 4.6 0.173 0.181

H 9.35 10.1 0.368 0.397

L 1 0.039

(L1) 2.8 0.110

L2 0.8 0.031

L4 0.6 1 0.023 0.039

DPAK MECHANICAL DATA

0068772-F

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DIM.mm. inch


A 2.2 2.4 0.086 0.094

A1 0.9 1.1 0.035 0.043

B 0.64 0.9 0.025 0.035

B2 5.2 5.4 0.204 0.212

B3 0.95 0.037

B5 0.3 0.012

B6 0.95 0.037

C 0.45 0.6 0.017 0.023

C2 0.48 0.6 0.019 0.023

D 6 6.2 0.236 0.244

E 6.4 6.6 0.252 0.260

G 4.4 4.6 0.173 0.181

H 15.9 16.3 0.626 0.641

L 9 9.4 0.354 0.370

L1 0.8 1.2 0.031 0.047

L2 0.8 1 0.031 0.039

IPAK MECHANICAL DATA

0068771-F

L78M00 SERIES

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DIM.mm. inch


A 330 12.992

C 12.8 13.0 13.2 0.504 0.512 0.519

D 20.2 0.795

N 60 2.362

T 22.4 0.882

Ao 6.80 6.90 7.00 0.268 0.272 0.2.76

Bo 10.40 10.50 10.60 0.409 0.413 0.417

Ko 2.55 2.65 2.75 0.100 0.104 0.105

Po 3.9 4.0 4.1 0.153 0.157 0.161

P 7.9 8.0 8.1 0.311 0.315 0.319

Tape & Reel DPAK-PPAK MECHANICAL DATA

L78M00 SERIES

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datasheet search site | l78m00 series 5/21 electrical characteristics of l78m05c(refer to the test...

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